Sleeve valve



July 14, 1931.

A. AM. Nlvr-:N

sLEvE VALVE Original F'led July 15, J 2 Sheets-Sheet 1 ATTORNEY.

' July 14, 1931. l A. M. NlvEN v 1,814,765

SLEEVE VALVE Origial Filed July 15, 1927 2 Sheets-*Shut 2 um f5- A TTORNE Y.

Patented `uly 14, 1931 g@UNITED STATES PATENT OFFICE ARCHIE MACPI-IAIL NIVEN, OF DETROIT,

MICHIGAN, ASSIGNOR TO CONTINENTAL Y MOTORS CORPORATION, OE DETROIT, MICHIGAN, A CORPORATION OF VIRGINIA siiEE-vE VALVE Originaly appli-cation filed July 15, 1927, Serial 1928. ,semi No. 301,445;

'This invention relates to internal combustion engines and refers more particularly to an improved'sleeve valve. My inventionrelates primarily to the single sleeve valve en-' A f gine and particularly, though not necessarily so limited,y to the ytype where the, sleeve is moved in -a combined reciprocating and oscillatlng path with respect to the sleeve and cyl-` inder aXis whereby the sleeveV and cylinder typical sleeve valve,

leiports are causedv to*V function the well known manner.l A c Heretofore such sleeve valves haverbeen generally made of ca'st iron7 especially where thevalves 'are drivenl by a link mechanism lloperated by afvalvelayshaft. Steel sleeves or sleeves constructed of materials having the general characteristics of steell asdisting'uished from, cast' iron have been used in many types of sleeve valve 'engines and 205 my."A invention embodies an improved construction forthistype of sleeveva'lve. l' VIt is known that steel sleeves may be made much lighter than castv iron sleeves thus reducing' the in'ertiaiforce's incident to operating the Zaengine.' Diiculty has been experienced,

however, in i suitably and' conveniently sec-ur# ing the driving' lugor` other sleeve drivingy means to the steel sleeve valve. `Such a probleIn does inot arise 'in the use of` cast iron sleeves since such lugs or drivingmeans may becast integrally with the sleeves.` 'A further difficulty experienced in connection with the use of steel sleeves resides in conveniently reinforcing the lower end of the sleeve. The steel sleeve due to its thinness is 40 conveniently "castwith the sleeve.

bination and arrangement of parts more pare i generally reinforced to prevent undue' twist: ing and distortion. 'Here,`again'where suchr reinforcing is desirable in Vav cast yiron sleeve,' a lreinforcing annular band or bands maybe 'I have provided means whereby a steel sleeve valve may be conveniently and 'cheap' ly'manufactured, overcoming the difficulties experienced inthe past.

r.This application lis a division of my pending application Serial No."205,973, filed July 17, 1927.

'-With the foregoing and other objects in view my invent-ionresidesinthe novel ycom- No. 205,973. Divided and this application filed August 23,

ticularly'hereinafter described and claimed. Referring to the accompanying drawings in which like reference characters indicateV valves and driving means therefor,

Fig. 2 is asectional elevation through a Fig. "3 's a perspective'view of the lower end of a sleeve valve showing the sleeve prepared to receive the driving lug, and

Fig.' 4c is a perspectiveview showing the driving lug. y f

' In the drawings reference character A represents 'the'sleeve' valves operable within cylinders Bftlhe` sleeves and cylinders having the usual ports (not shown) for controlling the cyclic events of the engine.V The sleeves may be driven in various manners, that shown comprising the valvelayshaft C h aving cranks 10 which may operate the links D conformingwith the sleeve contourwhereby the pivot pin 12may be positioned closer thanoth'erwise'to the sleeve valve. Thusthe sleeve 'valveis movedin a combined recip-v rocating and oscillating path, the usual piston (not shown) operating within each sleeve i valve for each cylinder of the engine.

Referring particularly to Figs; 3,l 4, and 5 sleeve 'A isconstructed of relatively thin steel tubing orother suitable material afford# n ing the necessary' -strength andl resistance to ruptureand distortion. Such tubing may be drawn,Y rolled .or prepared in anyl convenient y manner. 'I'then preferably spin or roll over cothe lower edge' tol form the annular flange 15 which will f stien the lower portion'of the sleeve andprevent'its't'wisting and distortion. The rib 16 Iis pressed outwardly and may be located so as `to receive therewithin the/iside edges 17 and top'edge 18 l" of the as distinguished from a right angular rela-V tive position. For the same reason the flange 15 oers agood welding connection and at the same time the rib- 16 and flange 15 stiffens and strengthens the sleeve. The lug E may be cut away at 28 to permit close positioning of the pivot pin 12 to the sleeve valve since otherwise the link pivot pin boss 211 would interfere with the driving lug rear wall requiring the pivot pin to be moved further away from the sleeve. Thus the lug E is formed with the ears 13 connected b-y bridges 25, aligned openings 26 in vthe ears receiving the pivot pin 12. The lugsE may be conveniently drop forged or stamped from sheet metal, and where the former method is employed the lugs may be forged in the form of an annular band with annular spaced flanges, and then segmentally cut to form the :lugs as shown in Fig. 4.

Since the general practice in engines of the character described is to proportion the parts so that a portion of the piston leaves the lower end of the sleeve valve during a part [of its travel, it is advisable to avoid sleeve deflected portions which might allow eXpansion of the piston rings into such deflected portions and the, several illustrated embodiments of my invention will meet such requirements Various modifications will suggest themselves without departing from the spirit and scope of my invention and I do not limit myself to the precise constructions illustrated except as recited in the claims.

What I claim as my invention is:

1. A tubular sleevervalve for internal combustion engines formed with an annular reinforcing flanged portion and an integral ribbed portion and a sleeve lug welded to said portions.

2. The combination with a tubular sleeve valve having a peripheral integral stiffening flange and an integral portion bent outwardly from the sleeve, of asleeve driving lug, and means cooperating with the flange and bent portion for securing the lug to the sleeve.

3. A tubular sleeve valve for internal combuston engines provided with an integral peripheral stiffening flange and an integrall rib,`r

and a sleeve driving lug secured adjacent the outer surface of the sleeve in Contact with the sleeve flange and rib.

4. The combination with a tubular sleeve valve having an integral peripheral stilfening flange, of a sleeve driving lug formed with a face contacting with the sleeve and a flanged portion adjacent the sleeve flange for welding thereto.

5. A tubular sleeve valve for internal combustion engines formed with an annular reinforcing llange about the lower circumferential edge thereof, and a sleeve lug having a port-ion overlapping said flange and welded thereto.

6. A tubular sleeve valve for internal combustion engines formed with an annular reinforcing flange portion and an integra-l ribbed portion, and a sleeve lug having a portion thereof overlapping said sleeve portions and welded thereto.

7. A tubular sleeve valve for internal combustion engines formed with an annular reinforcing flange portion and an integral ribbed portion, and a sleeve lug positioned to project radially outwardly with respect to the wall of the sleeve and having an inner edge portion overlapping said sleeve portions and welded thereto.

8. A tubular sleeve valve for internal combustion engines formed with an outwardly extendingvannular projecting portion, and a sleeve lug seated against the outer face of the tubular sleeve adjacent the projecting portion and secured thereto by welding the lug to said projecting portion. Y. Y

9. A tubular sleeve valve for internal combustion engines formed with an outwardly extending annular reinforcing flange about the lower circumferential edge thereof, and a sleeve lug seated against the outer face of the tubular sleeve adjacent the flange and secured thereto by welding the lug to said flange.

10. A tubular sleeve valve forinternal combustion enginesformed with an outwardly eX- A tending annular projecting portion, and a sleeve lug provided with an inner face of a contour permitting the same to seat against the outer face of the sleeve adjacent said projecting portion and secured thereto by permanently attaching the lug to said projecting portion.v

11. A tubular sleeve valve for internal combustion engines formed with an outwardly eX- tending annular projecting portion, and a sleeve lug comprising a pair of spaced ears and seated against the outer face of the sleeve and having one of said ears overlapping said projecting portion and welded thereto.

12. A tubular sleeve valve for internal combustion engines formed with a pair of spaced outwardly extending parallel annular projecting portions, and a sleeve lug having a pair of spaced parallel ears and seated against the outer face of the sleeve intermediate the projecting portions, the ears of said lug arranged to have aportion thereof overlapping said projecting portions and welded thereto.

13. A tubular sleeve valve for internal combustion engines formed with an annular reinforcing anged portion and an integral ribbed portion, and a sleeve lug seated against the outer face of the tubular sleeve adjacent to said portions and Welded thereto.

In Witness whereof, I hereunto subscribe my name this 20th day of August, A. D. 1928.

ARCHIE MAGPHAIL NIVEN. 

